CN212125082U - Axle braking structure - Google Patents
Axle braking structure Download PDFInfo
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- CN212125082U CN212125082U CN202020317157.8U CN202020317157U CN212125082U CN 212125082 U CN212125082 U CN 212125082U CN 202020317157 U CN202020317157 U CN 202020317157U CN 212125082 U CN212125082 U CN 212125082U
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- mounting seat
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- piston groove
- brake pad
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Abstract
The utility model relates to an axle braking structure, which comprises an axle body, a steering knuckle and a wheel hub, wherein a half shaft is arranged in the axle body, the half shaft is in transmission connection with the wheel hub, a first mounting seat and a second mounting seat are arranged on the axle body, the steering knuckle is rotatably arranged on the second mounting seat, a holding cavity is formed between the first mounting seat and the second mounting seat, a brake disc is arranged on the half shaft, a first piston groove is arranged on the first mounting seat, a first guide groove is arranged at the outlet end of the first piston groove, a first brake pad is arranged in the first guide groove, a first piston capable of axially moving in the first piston groove is arranged in the first piston groove, a first oil hole is arranged in the first piston groove, a second piston groove is arranged on the second mounting seat, a second guide groove is arranged at the outlet end of the second piston groove, a second brake pad is arranged in the second guide groove, a second piston capable of axially moving in the second piston groove is arranged in the second piston groove, the second piston groove is provided with a second oil hole. The utility model discloses braking effect is good, more stable.
Description
Technical Field
The utility model relates to an axle braking structure.
Background
The axle of the engineering vehicle generally comprises an axle body, two ends of the axle body are respectively connected with a steering knuckle, a wheel hub is mounted on the steering knuckle and used for driving the wheel hub to steer, a half shaft is arranged in the axle body and is in transmission connection with the wheel hub (for example, the half shaft is connected with the wheel hub through a cross joint) and used for driving the wheel hub to roll. For example, the chinese utility model patent with the name of "an axle" as the granted publication No. CN 206277893U discloses the conventional axle structure, in this axle, the brake is generally disposed on the wheel hub, and the wheel hub is more likely to contact the complex environment, which affects the performance of the braking effect of the brake.
Accordingly, the present inventors have made extensive studies to solve the above problems and have made the present invention.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an axle braking structure that braking effect is good, more stable.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a brake structure of an axle comprises an axle body, a steering knuckle arranged on the axle body and a wheel hub arranged on the steering knuckle, wherein a half shaft is arranged in the axle body and is in transmission connection with the wheel hub, a first mounting seat and a second mounting seat which are connected together are arranged on the axle body, the steering knuckle is rotatably arranged on the second mounting seat, a containing cavity is formed between the first mounting seat and the second mounting seat, the half shaft penetrates through the first mounting seat, the containing cavity and the second mounting seat, a brake disc is arranged on the half shaft and is positioned between the first mounting seat and the second mounting seat, a first piston groove is arranged on the first mounting seat, a first guide groove is arranged at the outlet end of the first piston groove, a first brake pad capable of axially moving along the first guide groove is arranged in the first guide groove, a first piston capable of axially moving in the first piston groove is arranged in the first piston groove, the first piston is arranged corresponding to the first brake pad, a first oil hole is formed in the first piston groove, a second piston groove is formed in the second mounting seat, a second guide groove is formed in the outlet end of the second piston groove, a second brake pad capable of axially moving along the second guide groove is arranged in the second guide groove, a second piston capable of axially moving in the second piston groove is arranged in the second piston groove, the second piston is arranged corresponding to the second brake pad, a second oil hole is formed in the second piston groove, the first brake pad and the second brake pad are respectively arranged on two axial sides of the brake pad, and the first oil hole and the second oil hole are connected with an oil system.
As an optimized mode of the utility model, the brake disc passes through the splined connection and is in on the semi-axis.
As an optimized mode of the utility model, be equipped with the primary shaft hole on the first mount pad, be equipped with the secondary shaft hole on the second mount pad, the primary shaft hole with be equipped with first bearing between the semi-axis, the secondary shaft hole with be equipped with the second bearing between the semi-axis.
As a preferred mode of the present invention, the half shaft is connected to the hub shaft of the wheel hub through a cross shaft.
As a preferable mode of the present invention, the first mounting seat and the second mounting seat are locked together by a screw.
As an optimized mode of the present invention, the first piston and the first sealing ring are disposed between the groove walls of the first piston groove, and the second sealing ring is disposed between the second piston and the groove walls of the second piston groove.
Adopt the technical scheme of the utility model afterwards, with the brake disc setting on the semi-axis of the internal bridge, can reduce external disturbance, guarantee the long-time use of brake disc, carry out two-way braking through first piston, first brake block, second piston and second brake block to the brake disc, promote automatic effect.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a partial cross-sectional view of the present invention.
Fig. 3 is an enlarged view of a portion a in fig. 2.
In the figure:
first left guide block 11 of bridge body 10
First right guide block 12 and second left guide block 13
Second right guide block 14 first mounting seat 15
Accommodating chamber 17 first knuckle 21
First left free end 31 and first right free end 32
First left rack 33 and first right rack 34
Second left movable end 41 of second cylinder 40
Second right movable end 42 and second left rack 43
Second right rack 44 first gear 51
The second gear 52 and the first shield 53
Half-shaft 60 spider 61
Second bearing 82
Detailed Description
In order to further explain the technical solution of the present invention, the following detailed description is made with reference to the accompanying drawings.
Referring to fig. 1 to 3, an axle steering structure includes an axle body 10, a first knuckle 21 and a second knuckle 22 respectively disposed on the axle body 10, and an oil cylinder for driving the first knuckle 21 and the second knuckle 22 to rotate, a first wheel hub 23 is mounted on the first knuckle 21, a second wheel hub 24 is mounted on the second knuckle 22, a first gear 51 is fixedly mounted on the first knuckle 21, a second gear 52 is fixedly mounted on the second knuckle 22, and an axis of the first gear 51 and an axis of the second gear 52 are both disposed along a vertical direction. The oil cylinders comprise a first oil cylinder 30 and a second oil cylinder 40, the first oil cylinder 30 and the second oil cylinder 40 are arranged along the horizontal direction, the first oil cylinder 30 is provided with a first left movable end 31 and a first right movable end 32, a first left rack 33 is arranged on the first left movable end 31, a first right rack 34 is arranged on the first right movable end 32, the second oil cylinder 40 is provided with a second left movable end 41 and a second right movable end 42, a second left rack 43 is arranged on the second left movable end 41, a second right rack 44 is arranged on the second right movable end 42, the first left rack 33 and the second left rack 43 are arranged on a first gear 51, the first gear 51 is arranged between the first left rack 33 and the second left rack 43, the first right rack 34 and the second right rack 44 are arranged on a second gear 52, and the second gear 52 is arranged between the first right rack 34 and the second right rack 44.
The utility model discloses well first hydro-cylinder 30 can be the hydro-cylinder of two single poles, and second hydro-cylinder 40 can be the hydro-cylinder of two single poles, as the utility model discloses a preferred mode, first hydro-cylinder 30 is the double-rod pneumatic cylinder, first left expansion end 31 with first right expansion end 32 is two piston rods of double-rod pneumatic cylinder respectively. As an optimized mode of the present invention, the second cylinder 40 is a double-rod hydraulic cylinder, the second left movable end 41 and the second right movable end 42 are two piston rods of the double-rod hydraulic cylinder.
As a preferred mode of the present invention, the first left rack 33 and the second left rack 43 are arranged in parallel, and the first right rack 34 and the second right rack 44 are arranged in parallel.
As a preferred mode of the present invention, the first gear 51 is fixed to the first knuckle 21 by a plurality of first screws (not shown) and the first knuckle 21 is rotatably mounted to the axle 10 by the main pin 25, and the second gear 52 is fixed to the second knuckle 22 by a plurality of second screws 26.
As a preferable mode of the present invention, the bridge body 10 is provided with a first left guide block 11 for guiding the sliding of the first left rack 33, a first right guide block 12 for guiding the sliding of the first right rack 34, a second left guide block 13 for guiding the sliding of the second left rack 43, and a second right guide block 14 for guiding the sliding of the second right rack 44, the first left rack 33 is disposed between the first left guide block 11 and the first gear 51, the first right rack 34 is disposed between the first right guide block 12 and the second gear 52, the second left rack 43 is disposed between the second left guide block 13 and the first gear 51, and the second right rack 44 is disposed between the second right guide block 14 and the second gear 52.
The utility model discloses when turning to, first left rack 33 and second left rack 43 move along opposite direction to drive first gear 51 and rotate, first right rack 34 and second right rack 44 rotate along opposite direction, thereby drive second gear 52 and rotate.
As an optimized mode of the present invention, the first protecting cover 53 for shielding the first gear 51 and the second protecting cover for shielding the second gear 52 are further included (other structures are not shown, the second protecting cover is not shown), one end of the first protecting cover 53 is installed on the first left guide block 11, the other end is installed on the second left guide block 13, one end of the second protecting cover is installed on the first right guide block 12, and the other end is installed on the second right guide block 14. The first and second shields 53 and 52 can reduce the falling of foreign matter such as dust onto the first and second gears 51 and 52.
The utility model discloses still improve the axle braking structure, this braking structure, including the pontic 10, set up knuckle on the pontic 10, install the wheel hub on the knuckle, be equipped with semi-axis 60 in the pontic 10, semi-axis 60 is connected with the wheel hub transmission, the utility model discloses in, the equal symmetry in both ends of pontic 10 is equipped with knuckle and wheel hub, and its here carries out detailed description with the structure of second knuckle 22 and second wheel hub 24 department.
The axle body 10 is provided with a first mounting seat 15 and a second mounting seat 16 which are connected together, the knuckle (here, the second knuckle 22) is rotatably mounted on the second mounting seat 16, an accommodating chamber 17 is formed between the first mounting seat 15 and the second mounting seat 16, the half shaft 60 is arranged in the first mounting seat 15, the accommodating chamber 17 and the second mounting seat 16 in a penetrating manner, the half shaft 60 is provided with a brake disc 80, and the brake disc 80 is located between the first mounting seat 15 and the second mounting seat 16. A first piston groove 151 is provided on the first mounting seat 15, an outlet end of the first piston groove 151 is provided with a first guide groove 153, a first brake pad 73 axially movable along the first guide groove 153 is provided in the first guide groove 153, the first brake pad 73 does not rotate relative to the first guide groove 153, a first piston 71 axially movable in the first piston groove 151 is provided in the first piston groove 151, the first piston 71 is provided corresponding to the first brake pad 73, a first oil hole 152 is provided in the first piston groove 151, a second piston groove 161 is provided on the second mounting seat 16, an outlet end of the second piston groove 161 is provided with a second guide groove 162, a second brake pad 74 axially movable along the second guide groove 162 is provided in the second guide groove 162, the second brake pad 74 does not rotate relative to the second guide groove 162, a second piston 72 axially movable in the second piston groove 161 is provided in the second piston groove 161, the second piston 72 is arranged corresponding to the second brake pad 74, a second oil hole (not shown in the figure) is arranged in the second piston groove 161, the first brake pad 73 and the second brake pad 74 are respectively arranged at two sides of the axial direction of the brake pad, the first oil hole 152 and the second oil hole are connected with an oil system, brake oil is conveyed to the first oil hole 152 and the second oil hole through the oil system to drive the first piston 71, the first brake pad 73, the second piston 72 and the second brake pad 74 to move, so that the first brake pad 73 and the second brake pad 74 are abutted against the brake disc 80, automatic braking is realized, and braking is released after the pressure of the oil system is relieved.
As a preferable mode of the present invention, the brake disc 80 is splined to the half shaft 60, and the brake disc 80 does not rotate relative to the half shaft 60.
As a preferred mode of the present invention, the first mounting seat 15 is provided with a first shaft hole 154, the second mounting seat 16 is provided with a second shaft hole 163, the first shaft hole 153 and the first bearing 81 is provided between the half shafts 60, the second shaft hole 163 and the second bearing 82 is provided between the half shafts 60. As a preferable mode of the present invention, the first mounting seat 15 and the second mounting seat 16 are locked together by screws.
As a preferred mode of the present invention, the half shaft 60 is in transmission connection with the hub shaft of the wheel hub through a cross shaft 61.
As a preferred aspect of the present invention, a first seal ring 72 is disposed between the first piston 71 and the groove wall of the first piston groove 151, a second seal ring 76 is disposed between the second piston 72 and the groove wall of the second piston groove 161, and in the embodiment, the first seal ring 75 and the second seal ring 76 are both provided in two ways.
The product form of the present invention is not limited to the drawings and embodiments of the present application, and any person can properly change or modify the product form of the present invention without departing from the scope of the present invention.
Claims (6)
1. The utility model provides an axle braking structure, includes the pontic, sets up knuckle on the pontic, installs the wheel hub on the knuckle, is equipped with the semi-axis in the pontic, and the semi-axis is connected its characterized in that with the wheel hub transmission: the axle body is provided with a first mounting seat and a second mounting seat which are connected together, the steering knuckle is rotatably mounted on the second mounting seat, a containing chamber is formed between the first mounting seat and the second mounting seat, the half shaft is arranged in the first mounting seat, the containing chamber and the second mounting seat in a penetrating manner, a brake disc is mounted on the half shaft and positioned between the first mounting seat and the second mounting seat, the first mounting seat is provided with a first piston groove, the outlet end of the first piston groove is provided with a first guide groove, the first guide groove is internally provided with a first brake pad capable of axially moving along the first guide groove, the first piston groove is internally provided with a first piston capable of axially moving in the first piston groove, the first piston is arranged corresponding to the first brake pad, the first piston groove is internally provided with a first oil hole, the second mounting seat is provided with a second piston groove, the outlet end of the second piston groove is provided with a second guide groove, the second piston groove is internally provided with a second piston which can axially move in the second piston groove, the second piston is arranged corresponding to the second brake pad, the second piston groove is internally provided with a second oil hole, the first brake pad and the second brake pad are respectively arranged at two sides of the brake pad in the axial direction, and the first oil hole and the second oil hole are connected with an oil system.
2. An axle brake arrangement according to claim 1, wherein: the brake disc is connected to the half shaft through a spline.
3. An axle brake arrangement according to claim 1, wherein: the first mounting seat is provided with a first shaft hole, the second mounting seat is provided with a second shaft hole, a first bearing is arranged between the first shaft hole and the half shaft, and a second bearing is arranged between the second shaft hole and the half shaft.
4. An axle brake arrangement according to claim 1, wherein: the half shaft is in transmission connection with a hub shaft of the hub through a cross shaft.
5. An axle brake arrangement according to claim 1, wherein: the first mounting seat and the second mounting seat are locked together through screws.
6. An axle brake arrangement according to claim 1, wherein: and a first sealing ring is arranged between the first piston and the groove wall of the first piston groove, and a second sealing ring is arranged between the second piston and the groove wall of the second piston groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020317157.8U CN212125082U (en) | 2020-03-13 | 2020-03-13 | Axle braking structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020317157.8U CN212125082U (en) | 2020-03-13 | 2020-03-13 | Axle braking structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212125082U true CN212125082U (en) | 2020-12-11 |
Family
ID=73673373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020317157.8U Active CN212125082U (en) | 2020-03-13 | 2020-03-13 | Axle braking structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212125082U (en) |
-
2020
- 2020-03-13 CN CN202020317157.8U patent/CN212125082U/en active Active
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| GR01 | Patent grant |